# Question: The Department of Transportation DOT fields thousands of complaints about

The Department of Transportation (DOT) fields thousands of complaints about airlines each year. The DOT categorizes and tallies complaints, and then periodically publishes rankings of airline performance. The following table presents the 2006 results for the 10 largest U.S. airlines.

a. Which airline fielded the least amount of complaints? Which airline fielded the most? Calculate the range.

b. Calculate the mean and the median number of complaints for this sample.

c. Calculate the variance and the standard deviation.

a. Which airline fielded the least amount of complaints? Which airline fielded the most? Calculate the range.

b. Calculate the mean and the median number of complaints for this sample.

c. Calculate the variance and the standard deviation.

## Relevant Questions

The monthly closing stock prices (rounded to the nearest dollar) for Starbucks Corp. and Panera Bread Co. for the first six months of 2010 are reported in the following table.a. Calculate the sample variance and the sample ...Consider the following data for two investments, A and B:a. Which investment provides the higher return? Which investment provides less risk? Explain.b. Given a risk-free rate of 1.4%, calculate the Sharpe ratio for each ...A data set has a mean of 500 and a standard deviation of 25.a. Using Chebyshevâ€™s theorem, find the interval that encompasses at least 75% of the data.b. Using Chebyshevâ€™s theorem, find the interval that encompasses at ...Go to the text website and access the data labeled Census. It shows, among other variables, median household income and median house value for the 50 states in 2010. Assume that income and house value data are bell-shaped.a. ...The Boston Security Analysts Society, Inc. (BSAS) is a non-profit association that serves as a forum for the exchange of ideas for the investment community. Suppose the ages of its members are based on the following ...Post your question